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https://www.readbyqxmd.com/read/28208160/quantitative-and-qualitative-profiles-of-circulating-monocytes-may-help-identifying-tuberculosis-infection-and-disease-stages
#1
Marco Pio La Manna, Valentina Orlando, Francesco Dieli, Paola Di Carlo, Antonio Cascio, Gilda Cuzzi, Fabrizio Palmieri, Delia Goletti, Nadia Caccamo
Tuberculosis (TB) is one of the most important cause of morbidity and death among infectious diseases, and continuous efforts are needed to improve diagnostic tools and therapy. Previous published studies showed that the absolute cells number of monocytes or lymphocytes in peripheral blood or yet the ratio of monocytes to lymphocytes displayed the ability to predict the risk of active TB. In the present study we evaluated the ratio of monocytes to lymphocytes variation and we also analyzed the ex-vivo expression of CD64 on monocytes as tools to identify biomarkers for discriminating TB stages...
2017: PloS One
https://www.readbyqxmd.com/read/28204665/not-tb-proof-latent-tuberculosis-in-kuala-lumpur-hospital-health-care-workers
#2
M Munisamy, K Krishnan, G Selvaratnam, A Panza, S Pongpanich, M Jimba
No abstract text is available yet for this article.
February 15, 2017: Occupational Medicine
https://www.readbyqxmd.com/read/28196957/a-novel-small-molecule-inhibitor-of-the-mycobacterium-tuberculosis-demethylmenaquinone-methyltransferase-meng-is-bactericidal-to-both-growing-and-nutritionally-deprived-persister-cells
#3
Paridhi Sukheja, Pradeep Kumar, Nisha Mittal, Shao-Gang Li, Eric Singleton, Riccardo Russo, Alexander L Perryman, Riju Shrestha, Divya Awasthi, Seema Husain, Patricia Soteropoulos, Roman Brukh, Nancy Connell, Joel S Freundlich, David Alland
Active tuberculosis (TB) and latent Mycobacterium tuberculosis infection both require lengthy treatments to achieve durable cures. This problem has partly been attributable to the existence of nonreplicating M. tuberculosis "persisters" that are difficult to kill using conventional anti-TB treatments. Compounds that target the respiratory pathway have the potential to kill both replicating and persistent M. tuberculosis and shorten TB treatment, as this pathway is essential in both metabolic states. We developed a novel respiratory pathway-specific whole-cell screen to identify new respiration inhibitors...
February 14, 2017: MBio
https://www.readbyqxmd.com/read/28196479/treatment-completion-for-latent-tuberculosis-infection-a-retrospective-cohort-study-comparing-9%C3%A2-months-of-isoniazid-4%C3%A2-months-of-rifampin-and-3%C3%A2-months-of-isoniazid-and-rifapentine
#4
Adelaide H McClintock, McKenna Eastment, Christy M McKinney, Caroline L Pitney, Masahiro Narita, David R Park, Shireesha Dhanireddy, Alexandra Molnar
BACKGROUND: The U.S. Centers for Disease Control and Prevention (CDC) recommended a new regimen for treatment of latent tuberculosis (three months of weekly isoniazid and rifapentine) in late 2011. While completion rates of this regimen were reported to be higher than nine months of isoniazid, little is known about the completion rates of three months of isoniazid and rifapentine compared to nine months of isoniazid or four months of rifampin in actual use scenarios. METHODS: We conducted a retrospective cohort study comparing treatment completion for latent tuberculosis (TB) infection in patients treated with nine months of isoniazid, three months of isoniazid and rifapentine or four months of rifampin in outpatient clinics and a public health TB clinic in Seattle, Washington...
February 14, 2017: BMC Infectious Diseases
https://www.readbyqxmd.com/read/28190535/treatment-of-latent-tuberculosis-in-patients-with-juvenile-rheumatic-diseases-a-systematic-review
#5
José Cleosmaque Leite Júnior, Regina Terse Trindade Ramos, Teresa Cristina Martins Vicente Robazzi
INTRODUCTION: Children and adolescents with rheumatic diseases receiving TNF blockers are at risk for the activation of latent Mycobacterium tuberculosis infection (LTBI). Although LTBI treatment is indicated in this group, there are different therapeutic regimens in the literature, without a definite consensus. OBJECTIVES: To review in the literature therapeutic schemes used and indicated for the treatment of LTBI in these patients. METHODS: Systematic review of the literature, using health databases, selecting studies that addressed the treatment of LTBI in patients with juvenile rheumatic diseases using TNF blockers, from 1990 to 2015...
January 21, 2017: Revista Brasileira de Reumatologia
https://www.readbyqxmd.com/read/28185619/diagnosis-of-latent-tuberculosis-infection
#6
Alfred A Lardizabal, Lee B Reichman
For 2015, tuberculosis (TB) incidence in the United States has plateaued at 3.0 per 100,000. This remains the lowest case rate since recording started. On the global level, although the TB epidemic is larger than previously estimated, TB deaths and incidence rate continue to fall. For both low and high incidence countries, accelerating the decline in TB incidence towards elimination goals requires that more emphasis be placed on strengthening systems for detection and treatment of latent TB infection (LTBI) in addition to improving TB care globally...
January 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28182700/pilot-double-blind-randomized-placebo-controlled-clinical-trial-of-the-supplement-food-nyaditum-resae%C3%A2-in-adults-with-or-without-latent-tb-infection-safety-and-immunogenicity
#7
Eva Montané, Ana Maria Barriocanal, Ana Lucía Arellano, Angelica Valderrama, Yolanda Sanz, Nuria Perez-Alvarez, Paula Cardona, Cristina Vilaplana, Pere-Joan Cardona
BACKGROUND: Nyaditum resae® (NR) is a galenic preparation of heat-killed Mycobacterium manresensis, a new species of the fortuitum complex, that is found in drinkable water, and that has demonstrated to protect against the development of active TB in a murine experimental model that develop human-like lesions. METHODS: Double-blind, randomized, placebo-controlled Clinical Trial (51 volunteers included). Two different doses of NR and a placebo were tested, the randomization was stratified by Latent Tuberculosis Infection (LTBI)-positive (n = 21) and LTBI-negative subjects (n = 30)...
2017: PloS One
https://www.readbyqxmd.com/read/28178325/prevalence-and-clinical-relevance-of-helminth-co-infections-among-tuberculosis-patients-in-urban-tanzania
#8
Francis Mhimbira, Jerry Hella, Khadija Said, Lujeko Kamwela, Mohamed Sasamalo, Thomas Maroa, Magreth Chiryamkubi, Grace Mhalu, Christian Schindler, Klaus Reither, Stefanie Knopp, Jürg Utzinger, Sébastien Gagneux, Lukas Fenner
BACKGROUND: Helminth infections can negatively affect the immunologic host control, which may increase the risk of progression from latent Mycobacterium tuberculosis infection to tuberculosis (TB) disease and alter the clinical presentation of TB. We assessed the prevalence and determined the clinical relevance of helminth co-infection among TB patients and household contact controls in urban Tanzania. METHODOLOGY: Between November 2013 and October 2015, we enrolled adult (≥18 years) sputum smear-positive TB patients and household contact controls without TB during an ongoing TB cohort study in Dar es Salaam, Tanzania...
February 8, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28177961/new-concepts-in-understanding-latent-tuberculosis
#9
Claire E Dodd, Larry S Schlesinger
PURPOSE OF REVIEW: Mycobacterium tuberculosis (M.tb), the etiologic agent of tuberculosis, is a prominent global health threat because of the enormous reservoir of subclinical latent tuberculosis infection (LTBI). Current diagnostic approaches are limited in their ability to predict reactivation risk and LTBI is recalcitrant to antibiotic treatment. The present review summarizes recent advances in our ability to detect, treat and model LTBI as well as our understanding of bacterial physiology during latency...
February 7, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28172951/p439-diagnosis-and-management-of-latent-and-active-tuberculosis-in-the-context-of-biologic-therapy-in-inflammatory-bowel-disease
#10
A A Thi, S Bouri, P Wolfson, L Owen, A Abbara, L John, R Davidson, A Hart
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28172646/dop063-serial-tuberculin-skin-test-improves-the-detection-of-latent-tuberculosis-infection-in-inflammatory-bowel-disease-patients
#11
C Taxonera, A Ponferrada, F Bermejo, J P Gisbert, S Riestra, C Saro, J L Cabriada, M Barreiro-de Acosta, J Barrio, E Flores, I Ferrer, A Hernandez, M Van Domselaar, D Olivares, C Alba, L Fernández-Salazar, O Merino, B Botella, D Ceballos, I Moral, M Peñate, A Algaba
No abstract text is available yet for this article.
February 1, 2017: Journal of Crohn's & Colitis
https://www.readbyqxmd.com/read/28170135/diagnostic-potential-of-interferon-gamma-release-assay-to-detect-latent-tuberculosis-infection-in-kidney-transplant-recipients
#12
Jameela Edathodu, Bright Varghese, Abdulrahman A Alrajhi, Mohammed Shoukri, Ahmad Nazmi, Hazem Elgamal, Hassan Aleid, Fahad Alrabiah, Aattia Ashraff, Ihab Mahmoud, Sahal Al-Hajoj
BACKGROUND: Latent tuberculosis (TB) infection (LTBI) is screened by using clinical assessment, tuberculin skin test (TST), chest radiography and recently by interferon-gamma release assays (IGRA). The objective of this study was to evaluate the diagnostic potential of QuantiFERON(®) -TB Gold In-Tube test (QFT) for diagnosing LTBI in patients planned for kidney transplantation. METHODS: All adult patients with end-stage renal disease, evaluated for kidney transplantation in a referral center from August 2008 till May 2013, were enrolled, after consenting in a prospective, observational, non-interventional study...
February 7, 2017: Transplant Infectious Disease: An Official Journal of the Transplantation Society
https://www.readbyqxmd.com/read/28167672/anthelmintic-therapy-modifies-the-systemic-and-mycobacterial-antigen-stimulated-cytokine-profile-in-helminth-latent-mycobacterium-tuberculosis-co-infection
#13
Rajamanickam Anuradha, Saravanan Munisankar, Yukthi Bhootra, Chandrakumar Dolla, Paul Kumaran, Thomas B Nutman, Subash Babu
Helminth infections are known to modulate cytokine responses in latent tuberculosis (LTB). However, very few studies have examined whether this modulation is reversible upon anthelmintic therapy. We measured the systemic and mycobacterial (TB) - antigen-stimulated levels of Type 1, Type 2, Type 17 and regulatory cytokines in individuals with LTB and with or without coexistent Strongyloides stercoralis (Ss) infection before and after anthelmintic therapy. Our data reveal that individuals with LTB and coexistent Ss infection have significantly lower levels of systemic and TB antigen-stimulated Type 1 (IFNγ, TNFα and IL-2) and Type 17 (IL-17A and/or IL-17F) cytokines and significantly higher levels of systemic but not TB antigen-stimulated Type 2 (IL-4 and IL-5) and regulatory (TGFβ) cytokines...
February 6, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28159607/c-tb-a-latent-tuberculosis-skin-test-for-the-21st-century
#14
Ibrahim Abubakar, Charlotte Jackson, Molebogeng X Rangaka
No abstract text is available yet for this article.
January 31, 2017: Lancet Respiratory Medicine
https://www.readbyqxmd.com/read/28157471/angiopoietins-as-biomarkers-of-disease-severity-and-bacterial-burden-in-pulmonary-tuberculosis
#15
N P Kumar, B Velayutham, D Nair, S Babu
BACKGROUND: Circulating angiogenic factors of the vascular endothelial growth factor family are important biomarkers of disease severity in pulmonary tuberculosis (PTB). However, the role of angiopoietins, which are also involved in angiogenesis, in PTB is not known. OBJECTIVE AND DESIGN: To examine the association of circulating angiopoietins with TB disease or latent tuberculous infection (LTBI), we examined the systemic levels of angiopoietin (Ang) 1, Ang 2 and Tie-2 receptor in individuals with PTB (n = 44), LTBI (n = 44) or no tuberculous infection (NTBI) (n = 44)...
January 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28157464/identifying-children-with-tuberculosis-among-household-contacts-in-the-gambia
#16
U Egere, T Togun, A Sillah, F Mendy, J Otu, M Hoelscher, N Heinrich, P C Hill, B Kampmann
SETTING: Greater Banjul Area of the Gambia. OBJECTIVES: To identify co-prevalent tuberculosis (TB) among child contacts of adults with smear-positive TB. DESIGN: Child contacts aged <15 years in the immediate household and compound were prospectively enrolled and evaluated for TB disease using screening questionnaires and the tuberculin skin test (TST). Symptomatic and/or TST-positive (10 mm) contacts were further investigated. RESULTS: Of 4042 child contacts who underwent symptom screening and TST, 3339 (82...
January 1, 2017: International Journal of Tuberculosis and Lung Disease
https://www.readbyqxmd.com/read/28153793/the-global-dynamics-of-diabetes-and-tuberculosis-the-impact-of-migration-and-policy-implications
#17
REVIEW
Enrico Girardi, Monica Sañé Schepisi, Delia Goletti, Matthew Bates, Peter Mwaba, Dorothy Yeboah-Manu, Francine Ntoumi, Fabrizio Palmieri, Markus Maeurer, Alimuddin Zumla, Giuseppe Ippolito
The convergence between tuberculosis (TB) and diabetes mellitus (DM) will represent a major public health challenge in the near future. DM increases the risk of developing TB by two to three times and also increases the risk of TB treatment failure, relapse, and death. The global prevalence of DM is predicted to rise significantly in the next two decades, particularly in some of the low- and middle-income countries with the highest TB burden. Migration may add further complexity to the effort to control the impact on TB of the growing DM pandemic...
January 30, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28153574/low-yield-of-chest-radiography-in-general-inpatients-and-outpatients-with-positive-ppd-results-in-a-country-with-low-prevalence-of-tb
#18
Ronald L Eisenberg, Benedikt H Heidinger
RATIONALE AND OBJECTIVES: The purpose of this study was to assess the frequency and spectrum of abnormalities on routine screening chest radiographs among inpatients and outpatients with "positive purified protein derivative (PPD)" in a large tertiary care academic medical center in a country with low prevalence of tuberculosis (TB). MATERIALS AND METHODS: The reports of all chest radiographs of general inpatients and outpatients referred for positive PPD (2010-2014) were evaluated for the frequency of evidence of active or latent TB and the spectrum of imaging findings...
January 30, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28146598/adherence-to-latent-tuberculosis-infection-treatment-in-a-population-with-a-high-number-of-refugee-children
#19
Tanya Rogo, Cynthia Eleanya, Priya Hirway, Doreen Pelland, Carol Lewis, Penelope Dennehy, Phyllis Losikoff
BACKGROUND: Refugee populations in the US have a higher reported prevalence of latent tuberculosis infection (LTBI). The objective of this study was to assess adherence to LTBI treatment in refugee and non-refugee children living in Rhode Island. METHODS: This was a retrospective review of LTBI patients seen in the Hasbro Pediatric Tuberculosis Clinic between August 2009 and September 2011. RESULTS: Of 120 patients with LTBI, 93% were foreign-born and 30% were refugees...
February 1, 2017: Rhode Island Medical Journal
https://www.readbyqxmd.com/read/28144201/a-cost-benefit-analysis-of-a-proposed-immigrant-latent-tuberculosis-infection-screening-program-for-cyprus
#20
Savvas Zannetos, Michael A Talias
INTRODUCTION: The study explored the potential economic benefit of an expanded screening program of immigrants before entrance to Cyprus as a policy to reduce the overall cost of tuberculosis (TB). Thus, the aim of this study is to study whether screening all immigrants coming from countries (including European Union countries) with high incidence of tuberculosis would be in the economic interest of the Republic of Cyprus or not. METHODS: In order to assess whether it could be economically beneficial for Cyprus to expand the screening checks for TB to all immigrants coming from high prevalence countries, a Cost-Benefit Analysis (CBA) was employed, and the Net Present Value (NPV) of the project was calculated...
December 2016: Materia Socio-medica
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